CN219696559U - Mica composite part with low heat conduction and high fire resistance for thermal runaway protection - Google Patents
Mica composite part with low heat conduction and high fire resistance for thermal runaway protection Download PDFInfo
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- CN219696559U CN219696559U CN202320844635.4U CN202320844635U CN219696559U CN 219696559 U CN219696559 U CN 219696559U CN 202320844635 U CN202320844635 U CN 202320844635U CN 219696559 U CN219696559 U CN 219696559U
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- 239000010445 mica Substances 0.000 title claims abstract description 111
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 111
- 239000002131 composite material Substances 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 114
- 239000004964 aerogel Substances 0.000 claims abstract description 68
- 238000007731 hot pressing Methods 0.000 claims description 15
- 239000000758 substrate Substances 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 10
- 239000004831 Hot glue Substances 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 230000003749 cleanliness Effects 0.000 claims description 6
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 claims description 6
- 239000002121 nanofiber Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims 9
- 238000009413 insulation Methods 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 105
- 238000013329 compounding Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 229910052628 phlogopite Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Laminated Bodies (AREA)
Abstract
The utility model relates to the technical field of mica materials for new energy automobiles, in particular to a mica composite part with low heat conduction and high fire resistance for thermal runaway protection. A mica composite member with low heat conduction and high fire resistance for thermal runaway protection comprises a first cloud base material layer and a second cloud base material layer with fire resistance, and an aerogel material layer compounded between the first cloud base material layer and the second mica material layer. The utility model has good fireproof performance and excellent heat insulation performance, can effectively improve the working safety performance of adjacent cells in the new energy battery module, and improves the safety coefficient of the whole new energy vehicle.
Description
Technical Field
The utility model relates to the technical field of mica materials for new energy automobiles, in particular to a mica composite part with low heat conduction and high fire resistance for thermal runaway protection.
Background
In recent years, new energy automobiles are increasingly popularized in the current automobile market due to environmental protection and policy advantages, but the safety of the new energy automobiles is always subject to the public, and reports are generated when the new energy automobiles are in battery accidents, which is a main factor for limiting the public to consume the new energy automobiles.
In order to improve the safety of the new energy automobile battery, a fireproof flame-retardant material is generally adopted as a base material of the accessory in the battery module. The fireproof flame-retardant material can play a key role in thermal runaway protection management of the new energy automobile battery, and the driving safety of the whole automobile and the use safety of the battery module are guaranteed.
At present, an insulating fireproof flame-retardant material in thermal runaway management of a new energy automobile is mainly made of a mica material, and mainly has the advantages of high electrical insulation, large dielectric constant, small loss, high dielectric strength, high chemical stability and the like, so that the mica material becomes a key substrate in thermal runaway management of a battery module.
The mica plate in the related art is mainly formed by combining phlogopite paper or fluorophlogopite paper with inorganic silica gel water and hot pressing, and has good protection and flame retardance effects, but the integral heat insulation performance is general, the protection requirement of adjacent cells in the new energy battery module cannot be met, and the development of application of the mica plate in thermal runaway protection management of the new energy automobile battery is limited.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a mica composite member with low heat conduction and high fire resistance for thermal runaway protection.
The utility model provides a mica composite part with low heat conduction and high fire resistance for thermal runaway protection, which is realized by the following technical scheme:
a mica composite member with low heat conduction and high fire resistance for thermal runaway protection comprises a first cloud base material layer and a second cloud base material layer with fire resistance, and an aerogel material layer compounded between the first cloud base material layer and the second mica material layer.
Through adopting above-mentioned technical scheme, adopt aerogel material layer as the sandwich layer, mica material not only has good fire behavior as the mica composite member that outer prepared but also has excellent thermal-insulated performance, can effectively improve the operational safety performance of adjacent electric core in the new energy battery module, promotes the factor of safety of new energy whole car. And the mica composite part can be designed into a rigid mica plate composite part and also can be designed into a flexible mica coil composite part, so that the requirements of different customers are met, the mica composite part can be suitable for the thermal runaway protection requirements of different parts of the battery module, and the safety coefficient of the whole new energy vehicle can be improved.
Preferably, the first cloud base material layer and the second cloud base material layer are mica paper, and the aerogel material layer is flexible aerogel.
By adopting the technical scheme, the flexibility and the elasticity of the prepared mica composite member can be improved, so that the requirements of different customers can be met, the mica composite member can be suitable for the thermal runaway protection requirements of different parts of the battery module, and the safety coefficient of the whole new energy vehicle can be improved.
Preferably, the flexible aerogel is one of organosilicon-based flexible aerogel, bio-based flexible aerogel and nanofiber flexible aerogel.
By adopting the technical scheme, the flexibility and the elasticity of the prepared mica composite member can be improved, so that the requirements of different customers can be met, the mica composite member can be suitable for the thermal runaway protection requirements of different parts of the battery module, and the safety coefficient of the whole new energy vehicle can be improved.
Preferably, the aerogel material layer comprises a flexible aerogel layer, a first mica grid belt layer and a second mica grid belt layer, wherein the first mica grid belt layer and the second mica grid belt layer are compounded on the flexible aerogel layer, one surface of the first mica grid belt layer is compounded on the upper surface of the flexible aerogel layer, and the other surface of the first mica grid belt layer is compounded on the lower surface of the first cloud base material layer; one surface of the second mica grid tape layer is compounded on the lower surface of the flexible aerogel layer, and the other surface of the second mica grid tape layer is compounded on the upper surface of the second cloud base material layer.
By adopting the technical scheme, the first cloud base material layer, the aerogel material layer and the second mica material layer can be stably compositely connected together to form the finished flexible mica roll composite part in a composite mode of the mica grid belt, and the air holes of the aerogel material are prevented from being blocked in the composite area, so that the structural stability of the flexible mica roll composite material is ensured, the low heat conduction and heat insulation effect is effectively ensured, the produced flexible mica roll composite part not only has the low heat conduction and fireproof and heat insulation effects, but also has the flexibility advantage, the requirements of different customers are met, the thermal runaway protection requirements of different parts of a battery module are met, and the safety coefficient of a whole new energy vehicle is improved.
Preferably, the first mica grid belt layer and the flexible aerogel layer and the first cloud base material layer are compounded in a hot-press compounding or hot-melt adhesive compounding mode; the second mica grid belt layer and the flexible aerogel layer and the second cloud base material layer are compounded in a hot-pressing mode or a hot-melt adhesive mode.
By adopting the technical scheme, the structural stability of the flexible mica roll composite material is ensured, and the production and the processing are convenient. For customers with high temperature resistance requirements, the flexible mica roll composite member prepared by adopting the hot-pressing composite mode has relatively good fire resistance and heat insulation stability.
Preferably, the first cloud base material layer and the second cloud base material layer are mica plates and further comprise packaging plastic layers, and the first cloud base material layer, the aerogel material layer and the second mica material layer form a laminated composite substrate; the packaging plastic layer is coated on the periphery of the laminated composite base material, so that the first cloud base material layer, the aerogel material layer and the second mica material layer are fixedly connected to form a finished mica composite member.
By adopting the technical scheme, the prepared rigid mica plate composite material has the advantages of good overall structural stability and low production and processing difficulty, and can meet the requirement of customers on the surface cleanliness.
Preferably, the first cloud base material layer and the second mica material layer have the same structure, taking the first cloud base material layer as an example, the first mica material layer comprises a mica substrate and glass fiber grid cloth, and the glass fiber grid cloth is compounded on the surface of the mica substrate, which is opposite to the aerogel material layer, in a hot pressing manner.
By adopting the technical scheme, the use of the glass fiber mesh cloth can improve the overall mechanical property.
Preferably, the first cloud base material layer further comprises a fluorosilicone coating for improving surface cleanliness, and the fluorosilicone coating is formed on the surface of the mica substrate, which is opposite to the aerogel material layer; the glass fiber mesh cloth is positioned in the fluorine-silicon coating.
By adopting the technical scheme, the requirements of customers on the surface cleanliness of the flexible mica roll composite part are met, the overall mechanical strength and weather resistance can be improved, and the overall service life is prolonged.
Preferably, the encapsulating plastic used in the encapsulating plastic layer is one of PET, PP, PE, PI, TPU.
By adopting the technical scheme, the structural stability of the rigid mica plate composite member can be improved, and the requirement of customers on the surface cleanliness can be met.
In summary, the utility model has the following advantages:
1. the utility model has good fireproof performance and excellent heat insulation performance, can effectively improve the working safety performance of adjacent cells in the new energy battery module, and improves the safety coefficient of the whole new energy vehicle.
2. The mica composite part can be designed into a rigid mica plate composite part and also can be designed into a flexible mica roll composite part, so that the requirements of different customers are met, the mica composite part can be suitable for the thermal runaway protection requirements of different parts of the battery module, and the safety coefficient of the whole new energy vehicle can be improved.
Drawings
Fig. 1 is a schematic overall structure of embodiment 1 in the present utility model.
Fig. 2 is a schematic overall structure of embodiment 2 in the present utility model.
Fig. 3 is a schematic overall structure of embodiment 3 in the present utility model.
FIG. 4 is a schematic representation of the structure of the aerogel material layer of example 3 of the present utility model.
In the figure, 1, a first cloud parent material layer; 11. a mica substrate; 12. glass fiber mesh cloth; 13. a fluorosilicon coating; 2. a layer of aerogel material; 21. a flexible aerogel layer; 22. a first mica mesh tape layer; 23. a second mica mesh tape layer; 3. a second cloud base material layer; 4. and (5) packaging a plastic layer.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
Example 1
Referring to fig. 1, a mica composite member with low heat conduction and high fire resistance for thermal runaway protection according to the present utility model includes a first cloud base material layer 1 and a second cloud base material layer 3 having fire resistance, and an aerogel material layer 2 having enhanced heat insulation property, which is composited between the first cloud base material layer 1 and the second mica material layer 3.
The aerogel material layer 2 can be selected from commercially available conventional oxide aerogel, nitride aerogel, quantum dot aerogel, polymer-based organic aerogel, and organosilicon-based flexible aerogelA bio-based flexible aerogel, a nanofiber flexible aerogel. The utility model adopts SiO 2 An aerogel.
Referring to fig. 1, the first and second mica material layers 1 and 3 are mica plates, which are conventional gold mica plates formed by combining gold mica paper with inorganic silica gel water and hot pressing. The first cloud base material layer 1, the aerogel material layer 2 and the second cloud base material layer 3 form a laminated composite substrate 10, and an encapsulation plastic layer 4 is packaged on the periphery of the laminated composite substrate 10 in a hot-pressing mode, so that the first cloud base material layer 1, the aerogel material layer 2 and the second cloud base material layer 3 are fixedly connected to form a finished mica composite member. The encapsulating plastic layer 4 is one of PET, PP, PE, PI, TPU. The encapsulation plastic layer 4 in this embodiment is a PET film.
Example 2
Example 2 differs from example 1 in that: referring to fig. 2, the first cloud base material layer 1 and the second cloud base material layer 3 have the same structure, and taking the first cloud base material layer 1 as an example, the first cloud base material layer 1 includes a mica substrate 11 and a glass fiber grid cloth 12, and the mica substrate 11 is also a conventional gold mica plate formed by combining phlogopite paper with inorganic silica gel water and hot pressing. The glass fiber mesh cloth 12 is compounded on the surface of the mica substrate 11, which is opposite to the aerogel material layer 2, in a hot pressing way, so that the mechanical strength of the integral mica composite member can be improved. In order to improve the surface cleanliness, the surfaces of the first cloud base material layer 1 and the second cloud base material layer 3 facing outward are formed with a fluorine-silicon coating layer 13.
Example 3
Example 3 differs from example 1 in that: referring to fig. 3, if the first cloud base material layer 1 and the second cloud base material layer 3 are mica paper, the aerogel material layer 2 is flexible aerogel.
Referring to fig. 3, the mica paper is a conventional phlogopite paper, and a fluorosilicone coating layer 13 is formed on one surface of the phlogopite paper and the first cloud base material layer 1 or the second cloud base material layer 3.
The flexible aerogel is one of organosilicon-based flexible aerogel, biological-based flexible aerogel and nanofiber flexible aerogel. The bio-based flexible aerogel having excellent flexibility, elasticity and excellent compression elasticity was used in this example.
Referring to fig. 3 and 4, the aerogel material layer 2 includes a flexible aerogel layer 21, and a first mica mesh tape layer 22 and a second mica mesh tape layer 23 that are compounded on the flexible aerogel layer 21, wherein one surface of the first mica mesh tape layer 22 is fixedly connected to the upper surface of the flexible aerogel layer 21 by a hot-pressing or hot-melt adhesive compounding manner, and the other surface of the first mica mesh tape layer 22 is also fixedly connected to the lower surface of the first cloud base material layer 1 by a hot-pressing or hot-melt adhesive compounding manner.
One surface of the second mica mesh tape layer 23 is fixedly connected to the lower surface of the flexible aerogel layer 21 in a hot-pressing or hot-melt adhesive compounding manner, and the other surface of the second mica mesh tape layer 23 is fixedly connected to the upper surface of the second cloud base material layer 3 in a hot-pressing or hot-melt adhesive compounding manner.
According to the utility model, the aerogel material layer is adopted as the core layer, so that the good heat insulation effect is provided for the novel energy battery module, and the mica composite part prepared by taking the mica material as the outer layer is provided with the good fireproof flame-retardant effect, so that the working safety performance of adjacent cells in the novel energy battery module can be effectively improved, and the safety coefficient of the novel energy whole vehicle is improved. In addition, according to the different selection of first cloud parent material layer 1, second cloud parent material layer 3, the finished product mica composite member that obtains can design into rigid mica board composite member, also can design into flexible mica and roll up composite member, satisfies different customer's demands, applicable thermal runaway protection demand in the different positions of battery module, is favorable to promoting the factor of safety of new forms of energy whole car.
The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. A low thermal conductivity, highly fire resistant mica composite for thermal runaway protection, characterized by: the fire-proof material comprises a first cloud base material layer (1) with fire-proof performance, a second cloud base material layer (3) and an aerogel material layer (2) which is compounded between the first cloud base material layer (1) and the second cloud base material layer (3).
2. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 1 wherein: the first cloud base material layer (1) and the second cloud base material layer (3) are made of mica paper, and the aerogel material layer (2) is made of flexible aerogel.
3. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 2 wherein: the flexible aerogel is one of organosilicon-based flexible aerogel, biological-based flexible aerogel and nanofiber flexible aerogel.
4. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 2 wherein: the aerogel material layer (2) comprises a flexible aerogel layer (21), and a first mica grid belt layer (22) and a second mica grid belt layer (23) which are compounded on the flexible aerogel layer (21), wherein one surface of the first mica grid belt layer (22) is compounded on the upper surface of the flexible aerogel layer (21) and the other surface of the first mica grid belt layer is compounded on the lower surface of the first cloud base material layer (1); one surface of the second mica grid tape layer (23) is compounded on the lower surface of the flexible aerogel layer (21) and the other surface of the second mica grid tape layer is compounded on the upper surface of the second cloud base material layer (3).
5. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 4 wherein: the first mica grid belt layer (22), the flexible aerogel layer (21) and the first cloud base material layer (1) are compounded in a hot-pressing mode or a hot-melt adhesive mode; the second mica grid belt layer (23), the flexible aerogel layer (21) and the second cloud base material layer (3) are compounded in a hot-pressing mode or a hot-melt adhesive mode.
6. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 1 wherein: the first cloud base material layer (1) and the second cloud base material layer (3) are mica boards and further comprise packaging plastic layers (4), and the first cloud base material layer (1), the aerogel material layer (2) and the second cloud base material layer (3) form a laminated composite base material (10); the packaging plastic layer (4) is coated on the periphery of the laminated composite base material (10) so that the first cloud base material layer (1), the aerogel material layer (2) and the second cloud base material layer (3) are fixedly connected to form a finished mica composite member.
7. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 6 wherein: the first cloud base material layer (1) and the second cloud base material layer (3) are identical in structure, the first cloud base material layer (1) comprises a mica substrate (11) and glass fiber grid cloth (12), and the glass fiber grid cloth (12) is compounded on the surface, opposite to the aerogel material layer (2), of the mica substrate (11) in a hot pressing mode.
8. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 7 wherein: the first cloud parent material layer (1) further comprises a fluorine-silicon coating (13) for improving surface cleanliness, and the fluorine-silicon coating (13) is formed on the surface of the mica substrate (11) facing away from the aerogel material layer (2); the glass fiber mesh cloth (12) is positioned in the fluorine-silicon coating (13).
9. A low thermal conductivity, high fire resistant mica composite for thermal runaway protection as defined in claim 6 wherein: the packaging plastic adopted in the packaging plastic layer (4) is one of PET, PP, PE, PI, TPU.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320844635.4U CN219696559U (en) | 2023-04-11 | 2023-04-11 | Mica composite part with low heat conduction and high fire resistance for thermal runaway protection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320844635.4U CN219696559U (en) | 2023-04-11 | 2023-04-11 | Mica composite part with low heat conduction and high fire resistance for thermal runaway protection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979209A (en) * | 2023-09-18 | 2023-10-31 | 深圳市安仕新能源科技有限公司 | Battery pack for heat spreading and production equipment thereof |
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2023
- 2023-04-11 CN CN202320844635.4U patent/CN219696559U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116979209A (en) * | 2023-09-18 | 2023-10-31 | 深圳市安仕新能源科技有限公司 | Battery pack for heat spreading and production equipment thereof |
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